CI/build_wasm: add missing rust component

Author: dannywillems

.github/workflows/ci.yaml

@@ -202,6 +202,7 @@ jobs:
      - name: Release build
        run: |
          cd node/web
+         rustup component add rust-src rustfmt --toolchain nightly-x86_64-unknown-linux-gnu
          cargo +nightly build --release --target wasm32-unknown-unknown
          wasm-bindgen --keep-debug --web --out-dir pkg ../../target/wasm32-unknown-unknown/release/openmina_node_web.wasm